The effects of pressure on valence trautomeric transition behavior of two complexes, [{Co(tpa)}₂(dhbq)]·(PF₆)₃ (I·(PF₆)₃) and [{Co(dpqa)}₂(dhbq)]·(PF₆)₃ (II·(PF₆)₃) (tpa = tris(2-pyridylmethyl)amine, dpqa = di(2-pyridylmethyl)-N-(quinolin-2-ylmethyl)amine and dhbq = deprotonated 2,5-dihydroxy-1,4-benzoquinone), in the light of changes of magnetic susceptibilities were investigated; the results show that external pressure makes the SC + ET transition process of the two complexes into a general SC process only.

A one-dimensional iron(II) spin-crossover compound [Fe(3py-im)₂(NCS)₂]·7H₂O (1) (3py-im = 2,4,5-tris(4-pyridly)-imidazole) has been solvothermally synthesized and structurally characterized. Compound 1 crystallizes in the monoclinic space group P2/c with a = 11.9078(2), b = 9.9474(1), c = 17.7290(3) and β = 102.361(2)° at 105 K. Studies on the variable-temperature magnetic susceptibilities and Mössbauer spectra suggest that compound 1 undergoes incomplete spin transition behaviour. Pressure effects on the transition behaviour have also been investigated, the thermal-induced spin transition becomes more gradual and the critical temperature shifts towards slightly higher temperature range when external pressure increases. However, the spin transition can not be completed by applying external pressure even as high as 0.79 GPa.

Three novel hierarchical multi-shell 66-nuclei silver nanoclusters trapping ultrasmall Ag₆⁴⁺units were realized by the combination of mild reductive DMF and multiple anions.